Source note · Unified CM release trains and lifecycle dates

Unified CM 14 and its SUs can upgrade to Release 15 with a Direct Standard Upgrade, through OS Admin or CLI or a PCD Upgrade Task. Version switching is supported.

Checked 2026-10-14

Vendor: Cisco
Product: Cisco Unified Communications Manager
Subsystem: upgrade-path
Deployment: on-premises
Region: not restricted
Release range: 14 and SUs to 15 and SUs
Checked: 2026-10-14

Sources

Compatibility Matrix for Cisco Unified Communications Manager and the IM and Presence Service, Release 15x — Cisco Systems · tier 2 current vendor documentation · Supported Upgrade and Migration Paths, source 14 and SUs rows

Cite this note

APA

WarmTransfer. (2026, October 14). Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-14-direct-to-15. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-14-direct-to-15

BibTeX

@misc{warmtransfer-claim-cucm-versions-lifecycle-upgrade-14-direct-to-15,
  title  = {Unified CM release trains and lifecycle dates: source note cucm-versions-lifecycle-upgrade-14-direct-to-15},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-versions-lifecycle-upgrade-14-direct-to-15},
  note   = {Source note cucm-versions-lifecycle-upgrade-14-direct-to-15, checked 2026-10-14}
}

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